Circular Connector Backshells

Circular connector backshells are components of a wiring system that attach to the cable side of a circular connector in order to provide robustness and ensure its integrity. They are typically separate from the connector head itself, and secure the cable to the connector via a clamp.

Why are circular connector backshells needed?

Circular connector backshells help to protect the connector, and to safeguard the reliability of the cable and ultimately the entire system. They prevent the ingress of dirt, moisture and liquids into the connector head by providing a tight seal against the cable itself. In addition they act as an effective form of strain relief for the connector assembly, ensuring that the cable cannot be bent to an excessive angle, which could potentially damage it.

What are circular connector backshells used for?

Circular connector backshells are used to shield wire connection points of interconnecting cables and connectors. They may also be used to shield against electrical interference in a system by acting as a continuation of the cable ground sheath directly into the connector itself.


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Description Price For Use With Shell Size Body Orientation Gender Housing Material Spring Clip Size Thread Size IP Rating Length Number of Contacts Strain Relief Series
RS Stock No. 689-8825
Mfr. Part No.BK4SRL08049XY
MYR184.97
Each
units
MIL-C 38999 Connector 9 Straight - Zinc Plated Aluminium - - - 31.75mm - - BK4
RS Stock No. 873-1948
Mfr. Part No.97-3057-20
MYR100.79
Each
units
Jacketed Cable, Wires Protected by Tubing 32 Straight - - - 1-3/4 in - 18 - 38.1mm - - 97
RS Stock No. 716-0279
Mfr. Part No.TVNSA15014
MYR376.54
Each
units
- - - - - - - - 35.6mm - - TV
RS Stock No. 198-7490
Mfr. Part No.BK4SRL14089SY
MYR179.42
Each
units
38999 III 14 Straight Female Aluminium Alloy - - - - - No BK4
New
RS Stock No. 206-7524
Mfr. Part No.M85049/38-15W
MYR50.18
Each
units
38999 III 15 Straight - Aluminium Alloy - - - - - Yes MIL
RS Stock No. 198-7484
Mfr. Part No.BK4SRL12079SN
MYR212.72
Each
units
38999 III 12 Straight Female Aluminium Alloy - - - - - No BK4
RS Stock No. 190-2527
Mfr. Part No.97-3057-1010
MYR28.224
Each (In a Bag of 50)
units
Jacketed Cable, Wires Protected by Tubing 18 Straight - - - 1 in - 20 - 23.37mm - - 97
RS Stock No. 691-2681
Mfr. Part No.1330 0 P2
MYR82.97
Each
units
- 0 Straight - Aluminium Alloy - - IP67 13mm - - ECTA 133
RS Stock No. 198-7491
Mfr. Part No.BK4SRL14089SY-B1
MYR238.61
Each
units
38999 III 14 Straight Female Aluminium Alloy - - - - - No BK4
RS Stock No. 510-8418
Mfr. Part No.AIA-5003-09-00-90-10-AA-04
MYR314.44
Each
units
Mil-C-38999 Series III - Right Angle - Aluminium Alloy - M12 - 32.39mm - No -
RS Stock No. 760-0600
Mfr. Part No.ABAC0715W19
MYR191.94
Each
units
MIL-DTL-38999 Connector Series III 19 Right Angle - Aluminium - - IP67 49.52mm - - ABAC
RS Stock No. 241-1301
Mfr. Part No.91D1-10-05-1-ZB
BrandPolamco
MYR171.74
Each
units
MIL-DTL-26482 Series I, PATT 105, PATT 603 10 Straight - Aluminium Alloy 1 UNEF 9/16-24 - 34mm - - 91
RS Stock No. 689-8945
Mfr. Part No.BK4SRN16109XY
MYR230.99
Each
units
MIL-C 26482 Connector 16 Straight - Zinc Plated Aluminium - - - 31.75mm - - BK4
RS Stock No. 760-0521
Mfr. Part No.ABAC1009W13
MYR164.87
Each
units
MIL-DTL-38999 Connector Series III 13 Straight - Aluminium - - IP67 33.88mm - - ABAC
RS Stock No. 626-9299
Mfr. Part No.JL05-24EB3B-(17)-RK
BrandJAE
MYR150.57
Each
units
- - - - - - - - 71.3mm - - -
RS Stock No. 474-603
Mfr. Part No.192991-0516
BrandITT Cannon
MYR165.09
Each
units
QM Range Connector - - Female Nylon - - - 67mm 23 - 192
RS Stock No. 873-1737
Mfr. Part No.97-3055-14-4
MYR44.29
Each
units
97 Series Standard Cylindrical Connector 14, 14S Straight Male - - 3/4 in - 24 (C Thread), 5/8 in - 24 (M Thread) - 22.23mm 1 - 97
New
RS Stock No. 206-7547
Mfr. Part No.M85049/38S21N
MYR88.68
Each
units
38999 III 21 Straight - Aluminium Alloy - - - - - Yes MIL
RS Stock No. 247-7137
Mfr. Part No.4-1437723-7
MYR72.15
Each
units
- 17 Straight - Plastic - - - 43mm - - -
RS Stock No. 873-1866
Mfr. Part No.97-3057-1016(676)
MYR42.09
Each
units
Jacketed Cable, Wires Protected by Tubing 24, 28 Straight - - - 1-7/16 in - 18 - 25.78mm - - 97
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